Tensile strength and yield strength of materials
Thread Content
Dear masters, please tell me that the tensile strength and yield strength of 35CrMo in the current national standard GB/T3077-2015 and 35CrMo in NB/T47008-2017 are inconsistent. Why is the forgings lower? Does that mean that we use alloy steel directly without forging to achieve higher strength?
Different standard systems are basically incomparable
Different tempering temperatures will result in different mechanical properties.
This only shows that standards have different requirements for materials of the same grade, but it does not mean that the performance of steel plates of the same grade is necessarily better than forgings.
The blank size of the plate is 25mm thick, and the forging is several hundred. Generally, plates are several hundred thick. The impact energy seems to be KU at the top and KV at the bottom.
This shouldn't be possible, dear.